TE Connectivity 2-520081-2 Quick Connect Female Crimp Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 2-520081-2 is a 0.110" (2.79mm) Quick Connect Female Crimp Connector rated for 18-22 AWG wire gauges. This fully insulated terminal is part of the Ultra-Fast series and is designed for free-hanging, in-line applications requiring secure electrical connections. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to address packaging availability and inventory requirements while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Specification
Tab Width	0.110" (2.79mm), 0.125" (3.18mm)
Tab Thickness	0.016" (0.41mm)
Wire Gauge	18-22 AWG
Insulation Type	Fully Insulated
Insulation Diameter	0.120" (3.05mm)
Overall Length	0.735" (18.67mm)
Contact Material	Brass
Contact Finish	Tin
Termination Method	Crimp
Gender	Female
Mounting Type	Free Hanging (In-Line)
Color	Red
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

The substitute part 2-520080-2 is electrically and mechanically equivalent to the main part 2-520081-2. Both parts share identical specifications across all critical parameters that determine functional compatibility: tab width, tab thickness, wire gauge rating, insulation type and diameter, overall length, contact material and finish, termination method, gender, mounting type, and color. The primary distinction between these parts is packaging format. The main part (2-520081-2) is supplied in Bulk packaging, while the substitute part (2-520080-2) is supplied in Cut Tape (CT) packaging. Both parts maintain the same base product number series (520081 and 520080 respectively) within the TE Connectivity Ultra-Fast connector series. Compliance certifications, including ROHS3 and MSL 1 ratings, are identical across both parts, confirming full substitutability for applications requiring 18-22 AWG quick connect female crimp terminals with 0.110" tab width specifications.

Parameter Comparison

Parameter	2-520081-2 (Main Part)	2-520080-2 (Substitute)	Match Status
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	Identical
Category	Terminals	Terminals	Identical
Series	Ultra-Fast	Ultra-Fast	Identical
Description	CONN QC RCPT 18-22AWG 0.110	CONN QC RCPT 18-22AWG 0.110	Identical
Tab Width	0.110" (2.79mm), 0.125" (3.18mm)	0.110" (2.79mm), 0.125" (3.18mm)	Identical
Tab Thickness	0.016" (0.41mm)	0.016" (0.41mm)	Identical
Wire Gauge	18-22 AWG	18-22 AWG	Identical
Insulation Type	Fully Insulated	Fully Insulated	Identical
Insulation Diameter	0.120" (3.05mm)	0.120" (3.05mm)	Identical
Overall Length	0.735" (18.67mm)	0.735" (18.67mm)	Identical
Contact Material	Brass	Brass	Identical
Contact Finish	Tin	Tin	Identical
Termination Method	Crimp	Crimp	Identical
Gender	Female	Female	Identical
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Identical
Color	Red	Red	Identical
Product Status	Active	Active	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
MSL Rating	1 (Unlimited)	1 (Unlimited)	Identical
Packaging	Bulk	Cut Tape (CT)	Different
Inventory Status	991 Pcs New Original In Stock	6922 Pcs New Original In Stock	Different

Engineering Selection Recommendations

Both the 2-520081-2 and 2-520080-2 are active production parts with identical electrical and mechanical specifications. Selection between these parts is determined by packaging requirements and inventory availability rather than functional performance.

The 2-520081-2 (Bulk packaging) is suitable for applications requiring loose component handling and bulk assembly processes. The 2-520080-2 (Cut Tape packaging) is suitable for automated pick-and-place assembly operations and applications requiring tape-and-reel component feeding.

Both parts maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity) ratings, confirming suitability for standard industrial and commercial applications without environmental restrictions. The identical contact material (brass with tin finish), wire gauge rating (18-22 AWG), and crimp termination specifications ensure equivalent electrical performance and connection reliability across both part numbers.

Frequently Asked Questions (FAQ)

Q: Are the 2-520081-2 and 2-520080-2 electrically interchangeable?

A: Yes. Both parts are electrically identical. They share the same tab width (0.110" / 2.79mm), tab thickness (0.016" / 0.41mm), wire gauge rating (18-22 AWG), contact material (brass with tin finish), and insulation specifications (fully insulated, 0.120" / 3.05mm diameter). Electrical performance and connection reliability are equivalent.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format. The 2-520081-2 is supplied in Bulk packaging, while the 2-520080-2 is supplied in Cut Tape (CT) packaging. All electrical and mechanical specifications are identical.

Q: Which part should I select for automated assembly?

A: The 2-520080-2 (Cut Tape packaging) is designed for automated pick-and-place assembly operations. The 2-520081-2 (Bulk packaging) is suitable for manual assembly and bulk component handling.

Q: Are both parts RoHS compliant?

A: Yes. Both the 2-520081-2 and 2-520080-2 are ROHS3 compliant and carry MSL 1 (unlimited moisture sensitivity) ratings.

Q: Can I use these connectors with 18-22 AWG wire?

A: Yes. Both parts are rated for 18-22 AWG wire gauges with crimp termination. The insulation diameter specification (0.120" / 3.05mm) accommodates this wire gauge range.

Q: What is the overall length of these connectors?

A: Both parts have an overall length of 0.735" (18.67mm).

Q: Are these parts suitable for free-hanging applications?

A: Yes. Both parts are designed for free-hanging, in-line mounting applications.

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